Handled tool



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C. W- TILLMANNS flame 1? 1924 TOOL HANDLED Filed Dec. 2,

INVENTOR CARI- W. TILE-W33.

WITNESS l atentecl June 1 7, l 924.

CARL W. TILLMANNS, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR 'lO REMINGTON ARMS COMPANY, INC., A CORPORATION OF DELAWARE. I

HANDLED TOO'L.

Application filed December 2, 1920. Serial No. 427,848.

To all whom it may concern:

B it known that I, CARL W. TILLMANNS a citizen of the United States, residing at 449 Colorado Avenue, city of Bridgeport, Fairfield County, and State of Connecticut, have invented certain new and useful Improvements in Handled Tools, of which the following is a specification.

This invention relates to handled tools and particularly to tools which are pivoted with respect to the handle as in the case of a pocket knife or jack knife and has for its principal object the provision of means for automatically locking the blade of a knife or other tool in opened position.

A further object is to accomplish this result by means of a resilient locking pawl fixedly mounted with respect to the handle and engageable with the knife or other tool to hold it in open position.

Other and further objects and advan tages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

In the drawings Fig. 1 is a front view of a pocket knife containing my invention, in which one blade or tool is shown in open position.

Fig. 2 is a side View of the device of Fig. 1 with certain parts broken away to more clearly illustrate the locking means.

Fig. 3 is'a detail view of the base of a tool such as a blade which has been modified to be used with my invention.

Fig. 4 is a view similar to Fig. 2 but showing a modified form of my invention.

In the case of the two bladed jack knife illustrated the handle, designated generally by reference character 1, may be formed of springs 2, a plate therebetween which may be a center scale 3 and plates on each side of the springs such as the linings 1. These parts are secured together by suitable fastening means such as rivets. If desired,

' ornamental handle plates 5 may be provided,v preferably attached to the linings at. In the form shown in the drawings one of the rivets 6 is used for the additional purpose of hinging the handle 1 to the selected tools, such as the blades 7 and 8, which may be resiliently held in either open or closed position by means of the springs 2, in a manner well known in the art.

It is common to provide many special tools such as corkscrews, leather drills,

knife blades, etc., with a pivoted handle. In the use of tools of this class the handle may turn accidentally about the pivot While being held in the hand. ofthe operator .and an injury result therefrom. In order to guard against such accidents I have devised an improved lock for holding the tool and handle in open position, and means for releasing this look at the will of the user.

in the drawings I have, for the sake of illustration, shown one means of accomplishing this result. Referring particularly to Fi 2, I provide a locking means, as a plate 9, which may be fixedly securedby any desirable means, such as rivets 6 and 10 to the tool handle, or a part thereof such as the lining 4.

In order to provide a locking means it is desirable to form a spring, or resilient tongue on member 9, and this may be conveniently accomplished by forming the slit 11 therein, thus forming the tongue 12 which the handle I have provided means for disengaging the locking parts 12 and 14 Such a releasing means may conveniently take the form of a thumb-piece or button 15 fixedly attached to the tongue 12. By merely pressing the button 15 outwardly from the recess in the tang of the tool the locking means is disengaged from said recess, and the tool may be closed in the usual manner. The button 15 is preferably formed substantially hemispherical as shown and with a longitudinal notch 15*. Such a button may be easily manipulated by the thumb or finger and yet has no sharp edges which would wear holes in the pocket in which the, knife is carried.

In knives or tools of this class it is often desirable to form the tang 13 somewhat thinner than the corresponding spring 2. This is made possible by the construction shown, wherein the plate 9 serves to space the tang 13 from the lining 4 thus providing a space between the tang and the lining into which the tongue 12 may recede When the blade is to be closed.

In Fig. 41- l have shown a modified form of this invention. In this form the spacing element 9' may be provided, held fixedly in place by means of rivet 6 and spring 2. The resilient part of the lock may be formed as a separate element 12 fixed in some convenient manner as for example the rivets 10 to a portion of the handle as for ex ample the lining a as shown.

While the form of mechanism here shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to limit the invention to either of the forms of the em bodiment herein disclosed, for it is susceptible of embodiment in various other forms all coming Within the scope of the claims Which follows:

1. In a device of the class described, a tool provided with an abutment on the tang thereof, elements spaced apart to "form a recess of greater Width than said tool tang and pivoted to the latter, a plate rigidly secured to one of said elements and interposed between the latter and said tang, thereby spacing said tang from said element, and releasable means to lock said tool and elements in substantial alignment comprising a resilient tongue carried by said plate and co-operating With said abutment,

inseam 2. In a device of the class described, a tool provided With an abutment on the tang thereof, elements spaced apart to form a recess of greater Width than said tool tang and pivoted to the latter, a plate rigidly secured to one of said elements and interposed between the latter and said tang, thereby spacing said tang from said element, releasable means to lock said tool and elements in substantialy alignment comprising a resilient tongue carried by said plate and co-op-' erating With said abutment, and means to release said lock comprising a button carried by said resilient tongue.

3. In a device or" the class described, a tool having a tang with an abutment thereon, elements spaced apart to form a recess of greater Width than said tool tang and pivoted to the latter, a plate interposed between one oi said elements and said tang and rig idly secured to; one 01" said last mentioned members, said plate serving to space said tang from said element and resilient means forming a part of said plate to releasably lock said tool and said elements in substair tial alignment by engagement with said abutment so that said resilient means maintains said alignment by its resistance to lon gitud nal compression.

In witness whereof I have signed my name ereto this 29 day of November, 1920.

@ARL W. TILLMANN 

